Nofowlplay - My hens still pick on my pullets and they've been together for about 6 weeks now. As the pullets get bigger there is less pecking and chasing. Mostly I think the pullets want to run from the hen so the hens think they need to chase and peck at them. Some nights on the roost they all get along, other nights they are picking on each other. It seems that is just the way they do things until everyone is full grown.
Thanks Ochochicas! I hope Punch eventually even goes in the coop at night. As of now she is sleeping on a roost by herself in the covered pen.. The coop is inside the pen but she has not slept there,:/